In the past year, two very innovative gold ore processing plants have been designed, built and commissioned by Gekko Systems Pty Ltd. The first plant in Vietnam utilises conventional crushing and ball milling followed by gravity concentration (Inline Pressure Jig (IPJ) and Falcon concentrator), flotation, intensive leaching (GFIL), the first industrial scale use of AuRIX100 ion exchange resin and a cyanide destruction circuit. The second plant, in Australia, uses a three-stage crushing circuit to crush the gold ore to minus 1 mm, followed by gravity concentration utilising a rougher, scavenger, cleaner circuit of IPJs and a Falcon concentrator. A direct smeltable gold concentrate is produced as well as a lower grade concentrate for future intensive leaching or sale. Both plants were designed and built within very tight time frames and budgetary constraints. The experience gained during the plants' design, commissioning and operation are discussed._x000D_
FORMAL CITATION:Gray, A H, Gannon, S, Abols, J and Hughes, T, 2006._x000D_
Commissioning and operating experience with Gekko's gold ore treatment plants, in Proceedings Metallurgical Plant Design and Operating Strategies 2006, pp 216-233 (The Australasian Institute of Mining and Metallurgy: Melbourne).